Covia’s HIFILL N (nepheline syenite) is a safer, silica-deficient functional filler widely used in a variety of polymers and silicone rubber applications. Micronized sizes are valued for purity of color, gloss control, antiblocking in polyolefin films, ease of dispersion with low viscosity build, abrasion, and superior weather resistance. Covia's HIFILL N functional mineral filler is mined from one of the world's largest, higher whiteness, and more chemically consistent deposits found in Blue Mt., Ontario Canada.
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IMSIL Microcrystalline silica fillers are produced from an inert, naturally occurring alpha quartz with a unique grape-like morphology. Easily wetted and dispersed in either solvent or water-based systems, IMSIL is selected for its excellent tint retention, durability over prolonged exposure, and resistance to dirt and weathering. Interior architectural paints formulated with IMSIL will exhibit strengthened film integrity, increased stain resistance, more uniform sheen control, and excellent touch-up characteristics. Low oil absorption, regardless of particle size, enables formulators to increase loading without adversely affecting critical film properties. Exterior coatings containing IMSIL will better resist weathering, chalking, and under eave frosting. When used in primers, IMSIL also provides the tooth necessary for better intercoat adhesion and greater durability in abrasive or corrosive environments. IMSIL has been proven effective in trade sales paints, OEM finishes, marine and industrial coatings, and potting compounds. Finer, micronized grades are useful in formulating higher gloss paints, and systems requiring controlled mineral top size, such as thin coatings and inks. Coarser grades offer texture, traction properties, gloss control, and abrasion resistance in coatings, grouts, sealants, and related building products. All IMSIL grades are processed with rigid adherence to Covia QIPSM statistical and quality assurance programs. The result is chemical purity and consistently uniform particle size distributions for predictable results and reliable service.
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MINEX industrial grade functional fillers and extenders add performance and value across a broad spectrum of applications. In coatings formulations, these materials impart many of the benefits of micronized MINEX grades, such as tint retention, weatherability, and abrasion resistance, while adding texture, traction properties, and gloss control. MINEX coarse fillers are easily dispersed in all conventional vehicle systems, and low resin demand facilitates high loading levels. These mineral extenders also improve structural and mechanical properties in elastomeric, adhesive, sealant, cemented, and polymer modified cementitious systems. Consistently uniform grain shapes and size distributions produce compressive strength and thermal stability in a variety of self-leveling and troweled coating and overlay systems. MINEX fillers are produced from nepheline syenite; a naturally occurring, silica deficient, sodium-potassium alumina silicate. Automated scanning electron microscopy confirms that MINEX contains less than one-tenth of one percent crystalline silica. No free crystalline silica is detectable in the mineral complex. All MINEX grades are processed and sized with rigid adherence to Covia's QIPSM quality assurance programs. Consistently uniform chemistries, size distributions, and top size controls ensure improved structural and chemical performance with minimal resin demand.
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MINEX functional fillers and extenders are proven performance enhancers in a broad range of paints, coatings, adhesives, sealants, and inks. Excellent brightness, tint retention, and weatherability can be achieved in exterior paints. Improved color, sheen uniformity, chemical and stain resistance, and durability result when MINEX is used in interior paint formulations. MINEX is easily dispersed in all conventional vehicle systems, and low oil absorption permits high loadings in adhesives, sealants, and aqueous and alkyd based paints. MINEX specialty grades use proprietary processing technologies to produce engineered mineral filler products. Ultrafine MINEX 10 and 12 are especially useful for higher gloss coatings and are the preferred choice for clear systems. Due to its unique light transmission properties, MINEX 12 is particularly well suited for clears, UV and powder coating systems requiring higher gloss and optimum clarity. MINEX EP grades have a controlled particle size distribution specifically developed to enhance the flatting of clear and opaque powder and liquid coatings with excellent dispersion characteristics. The controlled top-size lowers process wear while optimizing transparency in clears. Reduced fines content facilitates high solids/low VOC formulating. MINEX fillers are produced from nepheline syenite; a naturally occurring, silica deficient, sodium-potassium alumina silicate. Automated scanning electron microscopy confirms that MINEX contains less than one-tenth of one percent crystalline silica. No free crystalline silica is detectable in the mineral complex. All MINEX grades are processed and sized with rigid adherence to Covia’s QIPSM quality assurance programs. Consistently uniform chemistries and sizing controls ensure improved structural and chemical performance with minimal resin demand.
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MINEX micronized functional filler and extender is a proven performance enhancer in a broad range of paints, coatings, adhesives, sealants, and inks. Excellent brightness, tint retention, and weatherability can be achieved in exterior paints. Improved color, sheen uniformity, chemical and stain resistance, and durability result when MINEX is used in interior paint formulations. MINEX is easily dispersed in all conventional vehicle systems, and low oil absorption permits high loadings in adhesives, sealants, and aqueous and alkyd based paints. Multiple grades are available to provide optimal performance in a variety of applications. While the preferred MINEX product is application dependent, coarser grades offer cost effective gloss and sheen control and can add texture. The intermediate grade MINEX 4 offers application versatility for a wide range of architectural and industrial uses. Finer MINEX grades are preferred for higher gloss coatings and are also the preferred choice for powder and clear paint systems. MINEX fillers are produced from nepheline syenite; a naturally occurring, silica deficient, sodium-potassium alumina silicate. Automated scanning electron microscopy confirms that MINEX contains less than one-tenth of one percent crystalline silica. No free crystalline silica is detectable in the mineral complex. All MINEX grades are processed and sized with rigid adherence to Covia’s QIPSM quality assurance programs. Consistently uniform chemistries, size distributions, and top size controls ensure improved structural and chemical performance with minimal resin demand.
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SNOBRITE white extender pigments are produced from airfloated intermediate kaolins. With a plate like crystal structure and high aspect ratio SNOBRITE provides good reinforcing properties, increased hardness and stiffness, and improved resistance to abrasion and tear. Its tendency to slowly build viscosity makes SNOBRITE a cost effective formulating tool to enhance performance without adversely affecting production rates. SNOBRITE additions also improve critical working properties, including extrusion, calendering, mold release and handling. In molded and extruded rubber, SNOBRITE can be loaded to relatively high levels and still produce pliable compounds with good durometer values. Unlike finer particle clays, SNOBRITE will not absorb accelerators or adversely affect the cure rate. This is especially important in precision parts where shrinkage and extrusion properties need to be balanced with mechanical strength, hardness and resistance to tear. The high loading and low shrinkage characteristics of SNOBRITE are valued in a wide range of synthetic and natural rubber products, including roofing, footwear, wire and cable jacketing, hose, mill rods, commercial and residential roll matting, soft and novelty rubber goods and polyester gunks. Selectively mined to maximize whiteness and GEB values, SNOBRITE is particularly effective in systems where color is critical. Combined with light scattering properties which mimic more expensive opacifiers, SNOBRITE offers functional performance in a wide range of adhesives, sealants, caulking compounds, and mastics. In alkyd and water based coatings, the combination of particle shape and particle size distribution operate to improve film properties, including surface finish, permeability, scrub resistance, and hiding power. All SNOBRITE grades are mined, processed and sized under rigid Covia QIPSM statistical quality assurance programs. The result is consistent physical properties and uniform particle size distributions for reliable performance.
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